CN106129596A - Antenna radiation unit and multiple frequency broad band antenna for base station - Google Patents
Antenna radiation unit and multiple frequency broad band antenna for base station Download PDFInfo
- Publication number
- CN106129596A CN106129596A CN201610600789.3A CN201610600789A CN106129596A CN 106129596 A CN106129596 A CN 106129596A CN 201610600789 A CN201610600789 A CN 201610600789A CN 106129596 A CN106129596 A CN 106129596A
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- China
- Prior art keywords
- radiation
- antenna
- radiating element
- radiation unit
- feed balun
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
Abstract
The present invention provides a kind of antenna radiation unit, including base, stretch out radially the four pairs of feed Balun arranged from described base edge, and enclose four dipoles being arranged in described four pairs of feed Balun, each described dipole, includes a pair radiation arm, each radiation arm includes the first end of being connected with feed Balun and the second end away from feed Balun, and the horizontal addload part that the second end of two dipoles adjacent with multiple dipoles adjacent two radiation arms connects, and at least one pair of Plumb load part that second end relative with at least two in remaining radiation arm is of coupled connections.By above-mentioned design, can realize being effectively increased the resonance length of radiation arm, thus reach to shorten the length dimension of radiation arm, and then reduce the purpose of radiating element size.Additionally, the present invention also provides for a kind of multiple frequency broad band antenna for base station, use above-mentioned antenna radiation unit to carry out multifrequency antenna design, reduce influencing each other between frequency range, it is ensured that the independence of each frequency range electrical property.
Description
Technical field
The present invention relates to mobile communication antenna technical field, particularly relate to a kind of antenna radiation unit and apply this antenna spoke
Penetrate the multiple frequency broad band antenna for base station of unit.
Background technology
Along with increasing of mobile communications network standard, multiple communication standard the situation deposited are defined.As a example by optimize
Resource distribution, saves site and antenna feeder resource, reduces property simultaneously and coordinates difficulty, reduces cost of investment, the system that co-sited is co-located
Covolume antenna is increasingly becoming the first-selection of operator's networking.
The progressively acceleration built along with forth generation mobile communications network, each operator begins look for can be backward compatible
2G and the 3G standards such as GSM800, GSM900, DCS1800, PCS, CDMA2000, again can the 4G such as upward-compatible LTE700, LTE2600
The ultra-wideband antenna of standard.Simultaneously along with the restriction in space of building a station, miniature requirement becomes the development trend of antenna, but, with
Widening of frequency band, the size of antenna the most correspondingly increases, and causes the inconvenience of installation.
Owing to the miniaturization of antenna for base station, multisystem, wideband demand are deepened by people day by day, therefore, it is necessary to design
A kind of volume is little and compact conformation, the most also has the antenna radiation unit of broad frequency band and applies the base of this antenna radiation unit
Station antenna.
Summary of the invention
The primary and foremost purpose of the present invention aims to provide a kind of antenna radiation unit, and it has miniaturization, low section and broadband
Feature.
Another object of the present invention aims to provide a kind of antenna for base station applying above-mentioned antenna radiation unit.
For achieving the above object, the present invention provides following technical scheme:
A kind of antenna radiation unit that the present invention provides, extends radially including base, from described base edge and sets
Four pairs of feed Balun putting and enclose four dipoles being arranged in described four pairs of feed Balun, each described dipole
Including a pair radiation arm, each radiation arm includes the first end of being connected with feed Balun and the second end away from feed Balun, this
Outward, the horizontal addload that the second end of two dipoles adjacent with multiple dipoles adjacent two radiation arms connects also is included
Part, and at least one pair of Plumb load part that second end relative with at least two in remaining radiation arm is of coupled connections.
Specifically, described radiation arm has horizontal radiation face and the antenna with side radiation direction face being connected with horizontal radiation face.
Further, described horizontal addload part is fixed on described radiation arm by first medium insulating trip, and described water
Flat loaded member is fixed on above or below described horizontal radiation face.
Alternatively, the angle between described horizontal radiation face and described antenna with side radiation direction face is right angle or obtuse angle.
Specifically, described horizontal addload part is along downward bending outside radiation arm, and bending angle more than 60 ° and is less than
150°。
Specifically, the first end of described radiation arm extends outwardly and downward bending along horizontal radiation, and bending angle is more than
60 ° and less than 150 °.
Specifically, the every pair of described Plumb load part by a pair second medium insulating trip respectively with the radiation of two dipoles
Arm the second end connects, and described every pair of Plumb load part is symmetrical arranged.
Alternatively, the described four molecular structures of electrode couple are circular or square.
Specifically, two feed Balun of every pair of feed Balun are parallel and are symmetrical arranged, and two baluns each with one
One radiation arm of dipole connects.
A kind of multiple frequency broad band antenna for base station that the present invention provides, including at least one low frequency radiating element and multiple high frequency spoke
Penetrating unit, described low frequency radiating element is the antenna radiation unit described in above-mentioned any one.
Preferably, coaxial with the plurality of high frequency radiating element group of battle array of at least one low frequency radiating element described, and institute
State and low frequency radiating element is nested with described high frequency radiating element.
Preferably, the plurality of high frequency radiating element is group battle array in the way of at least three row, and the high frequency radiation list of each column
The coaxial setting of unit；Described low frequency radiating element by its embedded be cased with high frequency radiating element in the way of be located at high frequency radiating element composition
In the middle column of array.
Further, adjacent two row high frequency radiating element dislocation arrangements.
Compared with prior art, present invention have the advantage that
1. the antenna radiation unit of the present invention is by arranging horizontal addload part and Plumb load part on dipole radiation arm
Second end of adjacent two dipole adjacent radiation arms is coupled together, such that it is able to increase the resonance length of radiation arm, and then
Shorten the length dimension of radiation arm, reduce the size of radiating element, the most effectively improve the bandwidth of antenna oscillator simultaneously.
2. owing to using horizontal addload part and Plumb load part so that radiating element has unsymmetry, can effectively reduce
Mutual coupling between radiating element polarization.
3. the antenna radiation unit of the present invention is by arranging horizontal radiation face and antenna with side radiation direction face on radiation arm, effectively opens up
Resonance current path in wide dipole, reduces radiating element bore, and reduces radiating element height, reduce further
The size of antenna radiation unit.
The antenna radiation unit of the present invention, by novel design, it is achieved that the low section of antenna radiation unit, broadband,
The design of miniaturization, thus realize the Miniaturization Design of ultra broadband shared by multiple systems antenna for base station.
Accompanying drawing explanation
Present invention aspect that is above-mentioned and/or that add and advantage will will become from the following description of the accompanying drawings of embodiments
Obtain substantially with easy to understand, wherein:
Fig. 1 is the axonometric chart of the embodiment one of the antenna radiation unit of the present invention；
Fig. 2 is the partial perspective view of antenna radiation unit shown in Fig. 1, it is shown that the agent structure of radiating element；
Fig. 3 is the axonometric chart of the horizontal addload part of the embodiment one of the antenna radiation unit of the present invention；
Fig. 4 is the axonometric chart of one of the Plumb load part of embodiment one of the antenna radiation unit of the present invention；
Fig. 5 is the axonometric chart of one of the Plumb load part of embodiment one of the antenna radiation unit of the present invention；
Fig. 6 is the axonometric chart of the first medium insulating trip of the embodiment one of the antenna radiation unit of the present invention；
Fig. 7 is the axonometric chart of the second medium insulating trip of the embodiment one of the antenna radiation unit of the present invention；
Fig. 8 is the axonometric chart of the embodiment two of the antenna radiation unit of the present invention；
Fig. 9 is the partial perspective view of antenna radiation unit shown in Fig. 8, it is shown that the agent structure of radiating element；
Figure 10 is the axonometric chart of the horizontal addload part of the embodiment two of the antenna radiation unit of the present invention；
Figure 11 is the axonometric chart of one of the Plumb load part of embodiment two of the antenna radiation unit of the present invention；
Figure 12 is the axonometric chart of one of the Plumb load part of embodiment two of the antenna radiation unit of the present invention；
Figure 13 is the embodiment two of the antenna radiation unit of the present invention with first medium insulating trip axonometric chart；
Figure 14 is the embodiment two of the antenna radiation unit of the present invention with second medium insulating trip axonometric chart；
Figure 15 is the perspective view of the multifrequency ultra broadband antenna for base station of the antenna radiation unit composition of the present invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to
The embodiment that accompanying drawing describes is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.If it is known
Describing in detail of prior art the invention is characterized in that unnecessary for illustrating, then summarized or omit.
It is known that owing to the bandwidth of antenna is relevant with impedance, in order to reach enough bandwidth, it is desirable to the imaginary part of impedance is i.e.
Reactance is the smaller the better, ideally, when reactance is zero, can realize preferably mating between described antenna radiation unit.
To this end, the antenna radiation unit of the present invention is by designing the radiation arm of covert ground lengthened dipole cleverly so that
The physical length of radiation arm can shorten to a certain extent, thus reduces the volume of whole radiating element；It is also possible to make spoke
The change of the imaginary part penetrating cell impedance is slack-off with the growth of frequency, thus ensures that described antenna has wider bandwidth.
Embodiment one
Fig. 1 to Fig. 7 illustrates the antenna radiation unit 100 of the present invention jointly, including: 20, four pairs of feed Balun 30, four of base
40, three horizontal addload parts 50 of individual dipole, 70,80, three first medium insulating trips 60 of a pair Plumb load part and a pair
Second medium insulating trip 90.
In the form of a ring, described four pairs of feed Balun 30 stretch out from described base 20 edge and set described base 20 radially
Putting, described four dipoles 40 (including dipole 401～404) enclose and are arranged in described four pairs of feed Balun 30, and often
A dipole 40 is had to connecting in described feed Balun 30.Each described dipole 40, includes the radiation being separated from each other a pair
Arm, and each described radiation arm includes the first end of being connected with described feed Balun and the second end away from feed Balun.With
As a example by dipole 401, it includes radiation arm 401a, 401b, correspondingly, be respectively provided with the first end 401a1, the second end 401a2 and
First end 401b1, the second end 401b2.
Wherein, each described horizontal addload part 50 is by a described first medium insulating trip 60 and adjacent two dipoles
Second end of two adjacent radiation arms connects；The pair of Plumb load part 70,80 insulate by the pair of second medium
Sheet 90 the second end with remaining two radiation arms respectively is connected, to realize being of coupled connections of each two adjacent radiation arm.
By using coupled modes (such as by loading horizontal addload part 50 or Plumb load part 70,80 on radiation arm)
The adjacent radiation arm of adjacent two dipoles is connected, in a disguised form adds the resonance length of radiation arm, namely be equivalent to extend
The length of radiation arm.In other words, when script needs the radiation arm of equal length to carry out signal radiation, owing to have employed
Two radiation arms are of coupled connections by loaded member, and the physical length of the radiation arm being connected with loaded member can contract to a certain extent
Short, thus reduce the volume of whole radiating element 100.Simultaneously because of two of which radiation arm and other six radiation arm loading sides
The difference of formula, can break the symmetry of radiating element, effectively reduces the mutual coupling between radiating element polarization.
In another embodiment, described horizontal addload part can be provided only with one, and described Plumb load part is provided with
Three pairs, it is also possible to reduce radiating element volume, ensure that antenna has wider bandwidth and reduces the mutual coupling between radiating element polarization.
In another embodiment, horizontal addload part can be provided with two, and it is two right that Plumb load part is provided with, and also can realize contracting
The volume of little radiating element, it is achieved the purpose of the present invention.
Additionally, the adjacent radiation arm of two of which adjacent dipole is connected by a horizontal addload part, two other phase
Adjacent radiation is connected by Plumb load part, also can reach to reduce antenna radiation unit volume, ensure bandwidth and reduce radiating element
The purpose of mutual coupling between polarization.
Further, each described radiation arm includes interconnective horizontal radiation face and antenna with side radiation direction face, with radiation arm
As a example by 401a, described radiation arm 401a has horizontal radiation face 401a3, antenna with side radiation direction face 401a4.By arranging on radiation arm
Horizontal radiation face and antenna with side radiation direction face, effectively widen the path of resonance current in dipole 40, thus it be single to realize reducing radiation
Unit's bore, reduction radiating element height, reduce the volume of radiating element 100 further.
Preferably, the angle of described horizontal radiation face 401a3 and antenna with side radiation direction face 401a4 is right angle or obtuse angle.
Four described dipoles 40, are set gradually on base 20 by feed Balun 30, enclose infundibulate Guan Bi knot
Structure, four dipoles 40 arrange with radiation symmetric as structural environment around same geometric center (i.e. the center of base 20), from
And the radiating surface of an encirclement shape is presented by the radiation arm of each dipole.
Preferably, described radiation arm is all arched arm, and correspondingly, described horizontal addload part 50, dielectric insulation sheet 60,90 are equal
It is set as arc, jointly to enclose a circular ring structure with all radiation arms.
In the present embodiment, described horizontal addload part 50 is securable to above or below described horizontal radiation face.Institute
State a pair Vertical loading part 70,80 symmetry and thicker end face is oppositely arranged.
Further, described radiation arm the first end extends outwardly and downward bending along horizontal radiation, in order to regulate dipole
The impedance operator of son and cross polarization level.Wherein, bending angle between 60 ° to 150 °, preferably 90 °.
Preferably, described horizontal addload part bending outside radiation arm is stretched out, and bending angle is less than 150 ° more than 60 °.
Preferably, two feed Balun in every pair of feed Balun 30 are parallel to each other, one end of each feed Balun 30 and
Radiation arm connects, and the other end of described feed Balun 30 then connects with base 20, and this structure the most effectively carries dipole
Radiation arm, it also avoid interfering between dipole.
Embodiment two
See the another kind of realization side that Fig. 8～Figure 14, Fig. 8～Figure 14 illustrate the antenna radiation unit 100 of the present invention jointly
Formula.In the present embodiment, described antenna radiation unit 100 is similar with embodiment one, and difference is, described dipole
The radiation arm of son 40 is straight-arm, correspondingly, and described horizontal addload part 50, first medium insulating trip 60, second medium insulating trip 90
Profile be rectangle or approximate rectangular so that the structure that jointly encloses of four dipoles vertical direction be projected as square.
It is pointed out that in the present invention, the change of the profile of described horizontal addload part 50 and Vertical loading part 70,80
And in oscillator arms, the change of position does not affects its actual effect produced, and is the most all considered as the essence without departing from the present invention
Spirit.
Embodiment three
In the present embodiment, it is provided that a kind of multiple frequency broad band antenna for base station applying above-mentioned antenna radiation unit, at least one
Individual above-mentioned antenna radiation unit, as low frequency radiating element, organizes battle array jointly with multiple high frequency radiating element.
As shown in figure 15, in described multiband base station antenna 200, described low frequency radiating element A1, A2 and high frequency radiation list
Unit B1, B2, B3, B4 are coaxial group of battle array, and described high frequency radiating element B2 Yu B4 is nested in described antenna radiation unit A1 and A2,
On B1 Yu the B3 axis being arranged on A1 Yu A2 place the most straggly.High frequency radiating element C1, C2, C3, C4 and D1, D2, D3, D4
It is separately positioned on the both sides of the nested array being made up of A1, A2 and B1, B2, B3, B4, is formed and organize battle array shoulder to shoulder.
Owing to the antenna radiation unit of the present invention have employed horizontal radiation face, antenna with side radiation direction face and level coupling, vertical coupling
The asymmetric setting closed, while reducing the bore of described antenna radiation unit, also can reduce it to high frequency radiating element
Impact, time therefore by using the antenna radiation unit of the present invention to carry out multifrequency antenna design, it is ensured that each frequency range electrical property
Independence.
Below it is only the some embodiments of the present invention, it is noted that those skilled in the art are come
Saying, on the premise of without departing from the principle of the present invention, it is also possible to make some improvements and modifications, these improvements and modifications should also be as
As protection scope of the present invention.
Claims (13)
1. an antenna radiation unit, including base, from the most outward extending four pairs of feed Balun of described base edge,
And enclosing four dipoles being arranged in described four pairs of feed Balun, each described dipole, includes a pair radiation arm, often
Individual radiation arm includes the first end of being connected with feed Balun and the second end away from feed Balun, it is characterised in that also include with
The horizontal addload part that second end of two radiation arms that in multiple dipoles, adjacent two dipoles are adjacent connects, and and remaining
At least one pair of Plumb load part that the second end that in radiation arm, at least two is relative is of coupled connections.
Antenna radiation unit the most according to claim 1, it is characterised in that described radiation arm have horizontal radiation face and with
The antenna with side radiation direction face that horizontal radiation face is connected.
Antenna radiation unit the most according to claim 2, it is characterised in that described horizontal addload part is exhausted by first medium
Embolium is fixed on described radiation arm, and described horizontal addload part is fixed on above or below described horizontal radiation face.
Antenna radiation unit the most according to claim 2, it is characterised in that described horizontal radiation face and described antenna with side radiation direction
Angle between face is right angle or obtuse angle.
Antenna radiation unit the most according to claim 1, it is characterised in that described horizontal addload part is along radiation arm lateral
Lower bending, and bending angle is more than 60 ° and less than 150 °.
Antenna radiation unit the most according to claim 1, it is characterised in that the first end of described radiation arm is along horizontal radiation
Extending outwardly and downward bending, bending angle is more than 60 ° and less than 150 °.
Antenna radiation unit the most according to claim 1, it is characterised in that the every pair of described Plumb load part is by a pair the
Second medium insulating trip is connected with the second end of two dipole radiation arms respectively, and described every pair of Plumb load part is symmetrical arranged.
Antenna radiation unit the most according to claim 1, it is characterised in that the described four molecular structures of electrode couple are circle
Ring-type or square.
Antenna radiation unit the most according to claim 1, it is characterised in that two feed Balun of every pair of feed Balun are put down
Go and be symmetrical arranged, and two feed Balun connections corresponding from the different radiation arms of same dipole respectively.
10. a multiple frequency broad band antenna for base station, including at least one low frequency radiating element and multiple high frequency radiating element, its feature
Being, described low frequency radiating element is the antenna radiation unit in claim 1 to 9 described in any one.
11. multiple frequency broad band antenna for base station according to claim 10, it is characterised in that at least one low frequency radiation list described
First and the plurality of coaxial group of battle array of high frequency radiating element, and described low frequency radiating element is nested with described high frequency radiation list
Unit.
12. multiple frequency broad band antenna for base station according to claim 10, it is characterised in that the plurality of high frequency radiating element with
The mode group battle array of at least three row, and the coaxial setting of high frequency radiating element of each column；Described low frequency radiating element is nested with it
It is located at high frequency radiating element by the mode of high frequency radiating element to form in the middle column of array.
13. multiple frequency broad band antenna for base station according to claim 12, it is characterised in that adjacent two row high frequency radiating element are wrong
Position arrangement.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610600789.3A CN106129596A (en) | 2016-07-27 | 2016-07-27 | Antenna radiation unit and multiple frequency broad band antenna for base station |
| PCT/CN2017/081980 WO2018018966A1 (en) | 2016-07-27 | 2017-04-26 | Antenna radiation unit and multi-band base station antenna |
| BR112019001715-1A BR112019001715A2 (en) | 2016-07-27 | 2017-04-26 | radiator unit and multi-band base station antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610600789.3A CN106129596A (en) | 2016-07-27 | 2016-07-27 | Antenna radiation unit and multiple frequency broad band antenna for base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106129596A true CN106129596A (en) | 2016-11-16 |
Family
ID=57290390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610600789.3A Pending CN106129596A (en) | 2016-07-27 | 2016-07-27 | Antenna radiation unit and multiple frequency broad band antenna for base station |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN106129596A (en) |
| BR (1) | BR112019001715A2 (en) |
| WO (1) | WO2018018966A1 (en) |
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| WO2018018966A1 (en) * | 2016-07-27 | 2018-02-01 | 京信通信技术(广州)有限公司 | Antenna radiation unit and multi-band base station antenna |
| CN108110409A (en) * | 2018-01-30 | 2018-06-01 | 京信通信系统（中国）有限公司 | Broadband dual polarized antenna and its radiation appliance |
| CN108172978A (en) * | 2017-12-06 | 2018-06-15 | 京信通信系统（中国）有限公司 | Dual-polarization radiating unit and antenna assembly |
| CN108336486A (en) * | 2017-12-29 | 2018-07-27 | 京信通信系统（中国）有限公司 | Adjustable radiating element and antenna |
| CN108461904A (en) * | 2018-03-13 | 2018-08-28 | 江苏捷士通射频系统有限公司 | Ultra-wide-band emission unit applied to low-frequency range antenna |
| CN108987927A (en) * | 2018-08-16 | 2018-12-11 | 昆山恩电开通信设备有限公司 | A kind of bowl-shape antenna radiation unit with space wave transparent characteristic |
| CN109149131A (en) * | 2017-06-15 | 2019-01-04 | 康普技术有限责任公司 | Stealthy reflector Antenna element and relevant multiband antenna |
| CN109546312A (en) * | 2018-12-29 | 2019-03-29 | 京信通信技术(广州)有限公司 | Antenna for base station and its low frequency radiating element |
| CN109638460A (en) * | 2018-12-29 | 2019-04-16 | 京信通信技术(广州)有限公司 | Multifrequency antenna and the low frequency radiating element for inhibiting common mode resonance |
| CN110416704A (en) * | 2018-04-26 | 2019-11-05 | 罗森伯格技术（昆山）有限公司 | A kind of antenna radiation unit and wide frequency antenna |
| CN110957569A (en) * | 2019-12-30 | 2020-04-03 | 京信通信技术(广州)有限公司 | Broadband radiation unit and antenna |
| CN111092296A (en) * | 2019-09-30 | 2020-05-01 | 京信通信技术(广州)有限公司 | Base station antenna and radiating element thereof |
| CN111934087A (en) * | 2020-08-03 | 2020-11-13 | 深圳市普方众智精工科技有限公司 | Broadband dual-polarization diamond oscillator unit and linear array antenna |
| CN113241522A (en) * | 2021-03-22 | 2021-08-10 | 广东通宇通讯股份有限公司 | Feed system of antenna array |
| CN113629396A (en) * | 2021-08-10 | 2021-11-09 | 苏州纬度天线有限公司 | Low-profile radiation unit capable of improving gain and front-to-back ratio |
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| CN108666745B (en) * | 2018-04-26 | 2023-08-25 | 国动科技有限公司 | Base station antenna unit and base station antenna |
| CN111180870B (en) * | 2020-01-06 | 2021-11-23 | 武汉虹信科技发展有限责任公司 | Antenna radiation unit, base station antenna and antenna index adjusting method |
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| CN115799814A (en) * | 2021-08-27 | 2023-03-14 | 普罗斯通信技术（苏州）有限公司 | Radiating element and antenna |
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- 2016-07-27 CN CN201610600789.3A patent/CN106129596A/en active Pending
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- 2017-04-26 WO PCT/CN2017/081980 patent/WO2018018966A1/en active Application Filing
- 2017-04-26 BR BR112019001715-1A patent/BR112019001715A2/en unknown
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Effective date of registration: 20200120 Address after: 510730 Guangdong city of Guangzhou province Guangzhou economic and Technological Development Zone Jinbi Road No. 6 Applicant after: Jingxin Communication Technology (Guangzhou) Co., Ltd. Address before: 510663 No. 6, layered Road, Guangzhou economic and Technological Development Zone, Guangdong Applicant before: Jingxin Communication Technology (Guangzhou) Co., Ltd. Applicant before: Jingxin Communication System (China) Co., Ltd. Applicant before: TIANJIN COMBA TELECOM SYSTEMS CO., LTD. |
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Application publication date: 20161116 |